Answer:
No Answer
There is no city life in the Stone Age.
B. He was ordered by the government to develop a plan to change Native Americans.
The 1st Regiment New Mexico Cavalry was a volunteer cavalry regiment in the Union Army during the American Civil War.
The eastern and western deserts prevented invaders from the east and west. The deserts were a hard climate to travel through. Therefore, nobody could walk across to conquer Egypt. Furthermore, the cataracts in the Nile to the south protected the Egyptians from lands below them. So the answer would be that The Nile protected the Egyptians from invasion.